The influence of marina characteristicson non-native colonisation
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- Tez No: 758663
- Danışmanlar: PROF. STUART JENKINS
- Tez Türü: Yüksek Lisans
- Konular: Deniz Bilimleri, Biyoloji, Marine Science, Biology
- Anahtar Kelimeler: non-native species, recreational boating, shipping, invasion, species diversity, 27 marina characteristics, Welsh marinas
- Yıl: 2020
- Dil: İngilizce
- Üniversite: Bangor Unıversıty-Prıfysgol Bangor
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: Belirtilmemiş.
Özet
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Özet (Çeviri)
Marinas are hot spots area for non-native species because the marina properties are likely to 4 influence the distribution of non-natives. The different properties that impact NIS distribution 5 include their closeness to the marina, salinity range, tidal fluctuations, depth, and ascidian 6 presence, and so these elements influence the susceptibility to invasion. In marinas, transport 7 vectors such as commercial shipping, recreational shipping, and aquaculture and fishery 8 practices within enclosed marinas also have an important role in the distribution of non-native 9 species from one region to another during the bioinvasion process. There has been an important 10 increase in research studies on aquatic invasions over the last 20 years, but it can be difficult 11 to specify the effects on non-native species distribution because the invasion process is affected 12 by both environmental and biological factors. This can lead to a confusion when interpreting 13 the data. Based on the field surveys and available literature, we conducted a study focusing on 14 10 non-native species of marine invertebrates in the UK. This study explains the distribution 15 and ecology of five non-native species in Great Britain (Styela clava (Herdman, 1882), 16 Didemnum vexillum (Kott, 2002), Caprella mutica (Schrin, 1935), Crepidula fornicata 17 (Linnaeus, 1758), Watersipora subtorquata (d'Orbigny, 1852)) and the marina characteristics 18 of five non-native species colonisation (Austrominius modestus (Darwin, 1854), Ciona 19 intestinalis (Linnaeus, 1767), Botrylloides violaceus (Oka, 1927), Tricellaria inopinata 20 (d'Hondt & Occhipinti Ambrogi, 1985), Bugula neritina (Linnaeus, 1758 )) in Welsh coasts. 21 The results showed that some of the variations in marina characteristics have affected the 22 distribution of non-native species distribution. Variation among marinas in non-native species 23 abundance, diversity and multivariate structure of the assemblages was very high. Within a 24 marina, colonisation of tiles varied between locations at the entrance and within the marina but 25 not in any consistent way. The effect of tile orientation was surprisingly low. 26
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